I'd hope that LANDesk fixed this sort of thing in LD9, but just in case, you might want to take a look at this other post:
James Marriot posted a very useful batch file dealing with busted policies on devices. Maybe it would help with your situation.
Thank you for the reply,
Unfortunately I re-installed the agent on the effected workstation, which fixed the issue, before I could test with the batch file. I do thank you for the information and have saved the batch file, I'm sure I will use it some time down the road.